Nano Archive

Optical characterization of hierarchical ZnO structures grown with a simplified vapour transport method

Ursaki, V V and Rusu, E V and Sarua, A and Kuball, M and Stratan, G I and Burlacu, A and Tiginyanu, I M (2007) Optical characterization of hierarchical ZnO structures grown with a simplified vapour transport method. Nanotechnology, 18 (21). 215705 (8pp).

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Official URL: http://stacks.iop.org/0957-4484/18/215705

Abstract

A new ZnO micro/nanostructure morphology in the form of micro-torches was grown in the family of ZnO hierarchical structures by a simplified thermal chemical vapour transport and condensation method using a vertical furnace. It is formed by two basic parts: a three-dimensional (3D) crystal base and one-dimensional (1D) nanorods nucleated from this base. Mechanisms of this micro/nanostructure growth are suggested to be governed by the change of the ZnO vapour supersaturation level during the crystal growth. Micro-Raman analysis demonstrates good crystal lattice quality, independent of the micro/nanostructure morphology. Differences in the luminescence characteristics inherent to the different parts of the micro/nanostructure are expected to be useful for the development of micro/nano-optoelectronic devices.

Item Type:Article
ID Code:1573
Deposited By:Prof. Alexey Ivanov
Deposited On:16 Mar 2009 10:40
Last Modified:20 Mar 2009 08:58

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